io.netty.example.udt.echo.message.MsgEchoClient Maven / Gradle / Ivy
/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.example.udt.echo.message;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.udt.UdtChannel;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.example.udt.util.UtilConsoleReporter;
import io.netty.example.udt.util.UtilThreadFactory;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
/**
* UDT Message Flow client
*
* Sends one message when a connection is open and echoes back any received data
* to the server. Simply put, the echo client initiates the ping-pong traffic
* between the echo client and server by sending the first message to the
* server.
*/
public class MsgEchoClient {
private static final Logger log = Logger.getLogger(MsgEchoClient.class.getName());
private final String host;
private final int port;
private final int messageSize;
public MsgEchoClient(final String host, final int port,
final int messageSize) {
this.host = host;
this.port = port;
this.messageSize = messageSize;
}
public void run() throws Exception {
// Configure the client.
final Bootstrap boot = new Bootstrap();
final ThreadFactory connectFactory = new UtilThreadFactory("connect");
final NioEventLoopGroup connectGroup = new NioEventLoopGroup(1,
connectFactory, NioUdtProvider.MESSAGE_PROVIDER);
try {
boot.group(connectGroup)
.channelFactory(NioUdtProvider.MESSAGE_CONNECTOR)
.handler(new ChannelInitializer() {
@Override
public void initChannel(final UdtChannel ch)
throws Exception {
ch.pipeline().addLast(
new LoggingHandler(LogLevel.INFO),
new MsgEchoClientHandler(messageSize));
}
});
// Start the client.
final ChannelFuture f = boot.connect(host, port).sync();
// Wait until the connection is closed.
f.channel().closeFuture().sync();
} finally {
// Shut down the event loop to terminate all threads.
boot.shutdown();
}
}
public static void main(final String[] args) throws Exception {
log.info("init");
// client is reporting metrics
UtilConsoleReporter.enable(3, TimeUnit.SECONDS);
final String host = "localhost";
final int port = 1234;
final int messageSize = 64 * 1024;
new MsgEchoClient(host, port, messageSize).run();
log.info("done");
}
}